Home / 642,939.69-964,314.75-169,658.31

Finding the Fourth Proportional to 642,939.69, 964,314.75 and 169,658.31

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Solution

The fourth proportional to 642,939.69, 964,314.75 and 169,658.31 is: 254,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,939.69 : 964,314.75 = 169,658.31 : x
  2. Step 2: Convert to fraction form
    642,939.69/964,314.75 = 169,658.31/x
  3. Step 3: Cross multiply
    642,939.69x = 964,314.75 × 169,658.31
  4. Step 4: Simplify right side
    642,939.69x = 163,604,010,793.07
  5. Step 5: Solve for x
    x = 163,604,010,793.07/642,939.69
  6. Step 6: Final answer
    x = 254,462.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.